Taxonomies have been created and used widely from physical sciences to physical anthropology. In the business world we see a lot of talk on Enterprise Taxonomies and Business Taxonomies. In psychology we hear about Personality Taxonomies, Gesture Taxonomies and Krathwohl's Affective Taxonomy, Educational psychologists use what is famous as Bloom’s Taxonomy of Educational Objectives (1956). Many fields have used classification systems and taxonomies, but their applications and requirements have been different. We have seen the word taxonomy also being used to describe the thesaurus or classification scheme, to organize information on the web.